Operating mechanism for the doors of self-discharging receptacles



i APPLICATION FILED JUNE 2. I921. 1,421,439.

F. FINCKH. I OPERATING MECHANISM FOR THE DOORS QF SELF DISCHARGING RECEPTACLES.

Patented July 4, 1922 2 SHEETSISHEET' 1.

F. FINCKH. OPERAUNG MECHANISM FOR THE DOORS 0F SELF DISCHARGING RECEPTACLES.

. v APPLICATION FILED JUNE 2l 1921- 1,421,439.,

Patented July 4, 1922.

. 2 SHEETSSHEET 2- carts starts FRITZ FINCKH, OF ESSEN, GER/MANY, ASSIGNOR TO FRIED. KBUPP AKTIENGESELL- SCHAFT, OF ESSEN-ON-THE-RUHR, GERMANY.

GPEBATING MECHANISM FOR THE DOORS OF SELF-DISCHARGING REGEPTAGLES.

memes.

Application filed June 2, 1921.

1 0 all to homit may concern Be it known that I, Enrrz FiNoKi-I, residing at Essen, Germany, a citizen of the German Republic, have invented a certain new and useful Improvement in Operating Mechanism for the Doors of Self-Discharging Receptacles, of which the following is a specification.

This invention relates to operating mechanisms for working the doors of self-discharging receptacles and the object of the invention is to so arrange operating mechanisms of this kind, that a great effect of force produced by toggle lever action is exerted on the doors over as great an angular path as possible.

In the drawing is shown as an embodiment of the subject-matter of the invention and by way of example, a self-discharging railway car, which has a door bottom which opens in the middle on discharging and in which the operating mechanism forming the subject matter of the present invention is shown for operating these bottom discharging doors.

Figs. 1 to 3 each show an end view, partially in section, of the self-discharger with the discharging doors and the operating mechanism in different positions.

A and B denote the discharging doors of the bottom which doors A and B are to be actuated by the'operating mechanism, when the closing movement takes place, and which doors A and Bare each pivotally mounted on a shaft 0 v fixed to the frame C ofthe self' discharger, symmetrically tothe central longitudinal plane of the car. These doors A and B are mounted in such way that they tend to assume their open position under the action of the weight of the material contained in the car (see Fig. 2). To the discharging door A are attached several connecting rods D (which cover each other in the drawing) by which the door is connected to crank arms E. which are [ixed on a crank shaft E carried on the frame 0. shaft E there is also mounted a crank arm E to which one end of a connecting rod F is attached. The other end of this connecting rod F is attached to a crank arm G, which. together with another crank G arranged at right angles to it, is rigidly fixed on a shaft G carried in a bearing bracket C To the crank arm G there is attached a connecting rod H, which connects the said Specification of Letters Patent.

On the Patented July 4,1922.

Serial No. 474,532.

T he door B .is connected to the crank arms J by connecting rods K corresponding to the connecting rods D.

When in the closing movement of the discharging doors A and B, in which movement the shaft G rotates in the direction indicated by the arrow x, the closed position shown in Fig. 1 is attained, both the operating crank arm G of the crank gearing G, F, E and also the operating crank arm G of the crank gearing G H, J have passed 10 beyond the dead position. At the same time the operating crank arms E of the crank gearings E, D, which latter act in succession with respect to the crank gearing G, F, E

on the discharging door A, have also passed beyond their dead position which is denoted by straight line 1-2- (see Figs. 1 and In like manner the operating crank arms J of the crank gearings J, K, which latter act in succession with respect to the crank gear- $0 ing G, H, J of the discharging door l3, have passed. beyond their dead position whichis denoted by a straight line 1-2. When in this position of the crank arms E and J lie each against a stop 0 on the frame C of the self-discharger, whereby the angle, by which the crank arms E and J have passed'beyond their dead positions is limited. The angle by" which the crank arms J have passed beyond their dead positions (1'2) is greaterthan the'angle by Y.

which the crank arms E havepassed beyond their dead position (f2) (see Fig. 1). The ratios are further so selected that when the crankarms E are at theirdead position the crank arm G is still before its dead position; The same holds good for thecrank arms J and the crank arm G On the shaft G there is mounted a hand lever M, which is free to rotate relatively to the shaft within certain limits. These lim 1 its are fixed by a crank pin 9* which is mounted on a crank arm G rigidly connected to the shaft Gt. This crank pin 9 is adapted to engage either in the one or the other of two lugs m and m arranged on the lever M. According as the pin 9 engages with the lug m or m the lever M is coupled with the shaft G for rotation either in the direction of the arrow :0 (see Figs. 1 and 3) i10 ylond;ithe insdead positionsythe weight of the vloaded materialbearingon the doon B forms sp ondi a riving or in the opposite direction. In the angular position the lever M1 assumes when It bears with the lug m upon the pin g in the closed position of the discharging doors and of the corresponding crank gears; it em beflocked apt n, ica lly opn l d "under the action a a a hee d material; is the pos tions.

have beenoassed over both toting a bluralsystem of deadcenter locks and also in; the crank gears K, J and J?, H,

hol gt, the doorsA and areals o ensured a I rtai ty against beingopened under h actl on of any" accidentally occurring ex terhal iforces, mighti'po ssibly cause zotati a of he h t G? a For thelpurposeohdischarging, the hand letter" after the: ltey bolt N has been rentersh is r tat d n". bs e i n po i to thatof the arrow The shaft G? reduiilngthisdtime at rest until the lug e ne mia n s wi he ae ap after wh ch, on the I further rotat on of the hand leiqer, the shaft is also oarrled a longmith it. Assoon as in this operation thecra-nlc arm stand E haye paSSedbey-ond t 16p (leach pos tions, the Weight of the lo degl ma 1a bearingion thedoonA forms ,J l i p aer requ red torotate the ha cl lever M is r educed me very smalh amount. After theshaift Gihas atta ned an angular pos tion in which. also the a crank arms and the cna l; arm Ga wh ch passes through the positlon xbel'ore them, have passed hea h msel Harmlel'wfi S 901 21S tlnslatterhas rotated sutfiicientlyk to allow action ltheipre ssure of, the loaded material tenda V ing tobpen the doors, to (Wercome the fric-v tio 'nal resiis tanees, ot the operating mechaopening position shoyv n inll ig. 2. A jerking cannot be exerted on the handle he cr anlr p111: gf can pass outamhrnderc PQJ Ai ter, in this rotation the lug m has coihe into contact with the crank pin the f a otation; is transmittedlto the shaft-Ci? and imparts the closing inci ement toithe discharging doors through the medium of the 'ce for the{shaft G? sothat the a oor s move automatically the v crank gearings G, F, E and E, D, as also G H, J and: J; K. Asin. the closedposition (see Fig. l) of the discharging doors the crank arm J has passed farther beyond its dead position than the crank arm E, the result is that before the dead positions are attained towards the end ofjthe closing movement (see Fig. 3) the angle 2, 1, 3 through which thecrank arm J is distant from its dead position is smaller than the corresponding angle 2, l, 3' for, the crank arm (see Fig.) The crank gearing 9 therefore commences: to exert" a toggle leyer action sooner than the crank gearing It, D. Therefore, onthe clos ng movement vof the discharge doors even ate comparatively early oint of time and over aj'eerre p mlingly arge angular path a stronginoment olfi'force produced toggle levr action through the operating mechanism moving the discharge doorsis exerted; whereby the closing or theselatten is'considerably facilitated. Asthe' driving crank arln is and G o'lhthe crank gearings G, F, E? and G{,'H, J reach their dead 'positionslater than the crank arms E and J, they are still so far remote from theirfdead positionsat the commencement of the toggle lever action offthe crank gearsE, D, and J, K, th at tlieyca inot still exertany toggle leverfaction (SeeFig 3). During the further, course of, the closing movement I however, also the crank; gearingsQr, F, E a d G j, H, J 'still ex rti'a toggle lever action so that the efiiect ofthe operating mechanism is still further; in creasedin correspondence vvith the resistance Which increases as the: discharging doors approach the closed posit ion l Assoon the cranlcarms J hafve passedbeyond their dead position; (If-+2 9 the Weight oi the door B, While; the crank arms J a proach their end position'fi xeol by the'stop 9 i v. l i i 2", acts adrivmg factor on thecrank arms (see 1). This driving action'is,

,transmitted,from: the time arms through the crank,gearingdl I'I,G Ll1iG, F, to the cranksQE andconsequently, aslong as thesehave not yet passed beyopdtheir; dead position'sg assists automatically the closing movement of the door The closingmove ment is endeddas soon as the operating mechanism has again, attained the position shown in Eig. 1, from ivhich the description ot ftheactioii, of the gearing Was com fg qom the lugmt of thehandl lever and consei ouentlyc the shaft. Gfican, moye: in advance of the handlever. y

retnr n the discharging doors into thc closed position the hand lever is rotated, in

edirectiomindicatedby the arrow w (Hig 1 .member a r d earl center t I. i i J 1 J its actua tlng cleatl center lock a 2. In COITlbllltltlOllAVllZh a door, member, a:

plural system otinterconnected dead "center locks the one dead center lock actuated by another of the dead center locks above referred to, the one dead center lock reaching a substantially dead center position before its actuating dead center lock, and a free abutting means for actuating said plural system of dead center locks.

3. In combination with a car having a plural system of unloading doors, a plural system of interconnected dead center locks for at least two of said doors and a common means for operating said last named plural system of doors and locks according to a predetermined sequence.

In combination with a car having a plural system of unloading doors, a plural system of interconnected dead center locks for at least two of said doors and a common means for operating said last named plural system of doors and locks according to a predetermined sequence, said sequence comprising the unlocking of one dead center lock of a given door after the corresponding unlocking of a dead center lock for a previous door.

5. In combination with a door member, a plural system of interconnected dead center locks the one dead center lock actuated by another of the dead center locks above referred to, the one dead center lock reaching a substantially dead center position before its actuating dead center lock, and a free abutting means for" actuating said plural system of dead center locks, and a further means for locking said door and locks in a given position.

The foregoing specification signed at Essen, Germany, this 18th day of April, 1921.

FRITZ FINCKH. 

